Vulnerability Description
In the Lustre file system before 2.12.3, the ptlrpc module has a buffer overflow and panic, and possibly remote code execution, due to the lack of validation for specific fields of packets sent by a client. Interaction between req_capsule_get_size and tgt_brw_write leads to a tgt_shortio2pages integer signedness error.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Lustre | Lustre | < 2.12.3 |
Related Weaknesses (CWE)
References
- http://lustre.org/ProductVendor Advisory
- http://wiki.lustre.org/Lustre_2.12.3_ChangelogRelease NotesVendor Advisory
- https://jira.whamcloud.com/browse/LU-12600ExploitIssue TrackingThird Party Advisory
- https://review.whamcloud.com/#/c/35867/ExploitThird Party Advisory
- http://lustre.org/ProductVendor Advisory
- http://wiki.lustre.org/Lustre_2.12.3_ChangelogRelease NotesVendor Advisory
- https://jira.whamcloud.com/browse/LU-12600ExploitIssue TrackingThird Party Advisory
- https://review.whamcloud.com/#/c/35867/ExploitThird Party Advisory
FAQ
What is CVE-2019-20427?
CVE-2019-20427 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In the Lustre file system before 2.12.3, the ptlrpc module has a buffer overflow and panic, and possibly remote code execution, due to the lack of validation for specific fields of packets sent by a c...
How severe is CVE-2019-20427?
CVE-2019-20427 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2019-20427?
Check the references section above for vendor advisories and patch information. Affected products include: Lustre Lustre.